The cooling coils used in a commercial oxidation or ammoxidation reactors can be made more closely packed by providing the individual courses defining the cooling coil in a transverse arrangement rather than a linear alignment....http://www.google.es/patents/WO2015153275A3?cl=en&utm_source=gb-gplus-sharePatente WO2015153275A3 - Cooling coil design for oxidation or ammoxidation reactors

The cooling coils used in a commercial oxidation or ammoxidation reactors can be made more closely packed by providing the individual courses defining the cooling coil in a transverse arrangement rather than a linear alignment.